Rivet-setting machine



(No Model.) 7 SheetsSheet 1.

H. H. CUMMINGS.

RIVET SETTING MACHINE. No. 432,231. Patented July 15, 1890.

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(No Model.) 7 Sheets Sheet 2.

H. H. CUMMINGS.

, RIVET SETTING MACHINE. No. 432,231. Patented July 15, 1890.

(No Model.) 7 Sheets-FSheet 3.

- H. H. CUMMINGS.

RIVE'I' SETTING MACHINE.

No. 432,231. Patented-July 15, 1890.

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(No Model.) sheets-sheet 4. H H CUMMINGS RIVET SETTING MACHINE.

No. 432.231. Patented July 15, 1890.

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WITNEEEEE (No Model.) SheetS -Sheet 5.

H. H. CUMMINGS. RIVET SETTIN MACHINE.

No. 432,231. Patented July 15, 1890.

. .P Us i (No Model.) 7 Sheets-Sheet 6. H. H.-OUMMINGS.

RIVET SETTING MACHINE Patented July 15,1890.-

(No Model.) 7 Sheets-Sheet 7. H H CUMMINGS RIVET SETTING MACHINE.

No. 432,231.. PatentedJuly 1-5, 1890.

UNITED STATES PATENT OF IcE.

HENRY I-I. CUMMINGS, OF MALDEN, ASSIGNOR TO THE STANDARD GROOVE RIVET COMPANY, OF BOSTON, MASSACHUSETTS.

RlVET-SETTING' MACHINE.

SPECIFICATION forming part of Letters Patent NO. 432,231, dated July 15, 1890. Application filed April 5, 1888. Serial No. 269,777 (No model.)

To all whom it may concern: represents a vertical central sectional eleva- Be it known that I, HENRY H. CUMMINGS, tion of. the hopper, feedewheel, and chute. of Malden, in the county of Middlesex and; "Fig. 17 represents a vertical section through State of Massachusetts, have invented an Im; a portion of the bottom of hopper and feed- 5 provement in Rivet-Setting Machines, of Zwheel, showing rivets within the recesses or which the following is a specification. 1 holes formed in the interior of the rim of the The object of my invention is to provide a Ifeed-wheel, to be carried up and delivered machine for setting apeeuliarly-formed rivet, 'into .the chute, drawn 011 an enlarged scale. having a solid body provided with an annu- Fig. 18 represents avertical sect-ion through a [O lar groove,'and having a conical hole formed portion of the top of feed-Wheel, showing a in the point end thereof; and it consists in rivet heldv therein by means of a flat spring the construction, combination, and arrangeactingupon the head of the rivet. ment of the parts of'the machine, as herein- In the accompanying drawings, forming a after described, and set forth in the claims, part of the specification, and taken in con- 15 reference being had to the drawings, 'in nection therewith, A a represents the main V whichframe of the machine, upon which the several Figure 1 represents a plan of a rivet-setactuating mechanical devices are supported ting machine constructed according to my inand mounted, said frame being, when in use, vention, with the hopper and rivet-feeding elevated and secured in position on a suit- 2o mechanism removed. Fig. 2 represents a able bench or base of proper height for operfront elevation of the same. Fig. 3 represents ation. This frame A may be constructed of a side elevation thereof, and Fig. 4 represents cast-iron and provided with a main horizontal the opposite side of the machine. Fig. 5 repdriving-shaft 13, having suitable belt-pulleys resents an elevation of a detached portion, and clutches for stopping and starting the 2 5 drawn on an enlarged scale, and Fig. 6 repremovements of the machine by means of a footsents a vertical sectional elevation of the treadle actuated by the vertical connectingsame. Fig. 7 represents a vertical sectional red 0. (Shown in Figs. 3 and at.) The treadle elevation of a detached portion of the rivet: and bench, being of usual construction, need setting mechanism, and Fig. 8 represents a not be shown or further described. The said 8o 0 similar view of the same, showing the rivet main horizontal driving-shaft B has secured inserted through the pieces of material; and thereon at each side of the main frame A a Fig. 9 represents a similar view, showing grooved actuating-camE and F. The cam E, the rivet set or turned over and spread outwhen rotated, actuates the-pivoted horizontal ward on the material, so as to secure the two lever-bar D, the rear end of which is pro- 5 pieces together. Fig. 10 represents an in-, vided with afriction-roll a, which operates in verted plan of the table removed. Fig. 11 mp the irregular groove and on the upper side of resents a vertical central section through porthesaid cam E, and the opposite forward end tions of the rivet-setting devices, showing rivof the said horizontal lever-bar D is pivoted ets in elevation preparatory to being inserted or loosely connected with the upper sliding o 40 and set. Fig. 12 represents an elevation of a cross-head H, the said bar D being pivoted at jointed portion of the rivet-feed tube removed. about mid-length to the support I), secured to Fig. 13 represents a section of a rivet, showthe main frame A, or forming a part thereof, ing the form of the same when partially as shown. The opposite cam F, when rotated, turned over and removed from the material. actuates the pivoted horizontal lever-bar G, 5 5 Fig. 14 represents a horizontal sectional plan the rear end of which is provided with a fricot the feed-wheel, hopper, and chute for detion-roll c, which operates in the irregular liveri'ng the rivets to the vertical feed-tube. groove and 011 the under side of the said cam (Shown in section in Fig. 11.) Fig. 15 repre- F, and the opposite forward end of the said sents a side elevation of the hopper, feedhorizontal lever-bar G is pivoted or loosely 10o 50 wheel, and chute, the dotted lines as 00 showing connected with the lower sliding cross-head I, the line of section taken in Fig. 14. Fig. 16 the said bar G being pivoted at about mid= length to the support (I, which is secured to or forms a projection on the main frame A. The said main driving-shaft B has also secured thereon close to each side of the main frame A the eccentric actuating-cams J and K. The cam J, when rotated, actuates the pivoted cam-lever M, the rear end of which is provided with a friction'roll e,bearin g against the lower face or periphery of the said cc centric-cam J, and the opposite forward end of said cam-lever M is provided with a setscrew f, the end of which has a bearing against the lower end of some one of the three vertical sliding setting-punches P R S, provided in the said lower sliding cross-head I, as shown, the said cam-lever M being pivoted near its forward end to the main frame A, near the bottom thereof, by means of a bolt and nut or screw-bolt g, as shown in Figs. 3 and t. The said main driving-shaft B has also secured thereon at the same side of the main frame an eccentric O, as shown in Fig. 3, and which will be described hereinafter.

The eceel'ltric-eam K, when rotated, actuates the pivoted cam-lever N, the rear end of which is provided with a friction-roll 2 bearing upon the upper face of the said eccentric-cam K, and the opposite forward end of said cam-lever N is provided with a set-screw h, the end of which has a bearing upon the top end of the perforating-punch T or setting-punch U, which are fitted to slide vertically through the said upper sliding crosshead II, the said cam-lever N being pivoted to the main frame A, near the top thereof, by a screwbolt 7r, as shown in Fig. 4. The said eccentric-cams J and K being shown in position by dotted lines in Figs. 3 and 4 and shown in full, removed, directly opposite in each of said Figs. 3 and 4, their operation will be understood.

A small horizontal plate or table L is secured 011 suitable supports m, projecting from the forward portion of the lower projecting portion of the main frame A, as shown. This table L supports the material Q, being secured together by means of the rivets V, hereinafter more fully described. This table L is provided with a centralopening n, and upon the under side has pivoted thereto a pair of springjaws \V, provided on their meeting edges with countersunk projections 1), which operate within the said opening a, when the beveled ends of the setting-punches P R or square-ended punch S are forced upward through the countersunk opening 7, formed through the said projections of the jaws, so as to open the same when the said setting punch S slides upward through the opening 7* to finish the turning over of the hollow point end of the rivet V, as shown in Fig. 9. The jaws are opened or forced apart by the action of the punch, and are closed when the same is withdrawn by the bent-wire spring q, which has a bearing at each end with the outward edges of the said jaws W, as shown in Fig. 10. The said jaws are held in position with the under side of the said table L by means of the cross-bar guides s s, and are pivoted thereto by screws ti, passing loosely through the rear ends thereof, as shown. The leather or other pieces of material to be united are placed in position on the said table L, and then the presser-foot Y is forced downward upon the same by means of the treadle, (not shown,) which connects with the lower end of the vertical treadle-rod (J, the upper end of which is pivoted to the rear end of the curved spring-bar X, which is pivoted to a bearing-block or projecting stud "a, or the stud a may form the pivot, and its outward end provided with an opening or slot to receive the said spring-bar X, as shown. The forward end of the spring-bar X is pivoted or loosely connected to the upper end of the vertical sliding bar Z, the lower end of which is secured to the top of the said presser-foot Y, so that when the treadle is pressed downward by the foot of the operator the vertical rod 0 is forced upward and the forward end of the spring-bar downward, which carries the sliding-bar Z downward within the vertical hole fitted through the upper portion of the frame A to receive it. The said sliding bar Z is shown by dotted lines in Fig. 4. The said presser-foot Y is formed with a longitudinal opening through it, and within this opening is fitted a horizontal sliding carrier A provided near its forward end with a vertical hole adapted to receive a rivet V, as shown in Fig. 11, in the operation of setting the same, as hereinafter described. This hori zontal sliding carrier A is pivoted at its rear end to the short pivoted link or bar 13 which is pivoted to the lower end of the arm Oflthe upper end of which is rigidly secured to the end of the short rock-shaft D which passes loosely through a hole in the frame A to receive it and permit a slight rotary or rocking motion therein, and to the opposite end of this rock-shaft D is secured in a permanent manner the upper end of the arm E the lower end of which is pivoted to the connect:- ing-bar F which bar F is likewise pivoted to the upper end of the actuating lever-bar l which is pivoted at about mid-length to the said frame A of the machine, and its lower end provided with a friction-roll ll which has a bearing upon the periphery of the cocentric O, as shown in Fig. Now it will be seen that by the rotation of the said eccentric 0 its action upon the connected levers,arms, rock-shaft, and pivoted bars, as above described, and intermediately connected with the said sliding carrier A will cause the same to receive a horizontal reciprocating movement, so as to carry forward a rivet V, which has been deposited within the hole or opening prepared to receiveit, from the lower end of the vertical feed-tube L when the hole or opening is brought directly beneath the same. The lowerend of the feed-tube Ifis connected with the top of the presser-foot Y, and in order to permit the presser-foot to be carried downward upon pieces of material Q, as shown in Figs. 7, 8, and' 9, I provide the lower portion'of the said feed-tube with a sliding joint J as shown in Figs. 11 and 12. By this means the presser-foot may be forced down, as above described, to rest on the material about to be secured by the rivets, and by means of the sliding joint in the said'feedtube the rivets contained therein, as shown, are kept in position, resting one upon the top of the sliding carrier as it is pushed forward, as shown in Fig. 11, and the other rivets contained in said tube resting upon each other in a vertical column, as shown. The bottom rivet at each alternate movement, or each time the carrier is drawn backward into position beneath the tube, falls into the hole or cavity, so as to be carried forward and inserted through the material, as hereinafter described. To the upper end' of the said vertical sliding bar Z is seen red a short horizontal cross-plate a which has an opening through which the vertical feed-tube L passes loosely, so as to permit the said cross-plate a to slide up or down thereon when the presser-foot is raised or lowered, as above described. This crossplate a is provided with an adjustable setscrew 0 the lower end of which projects down ward and rests on the shoulder provided near the upper end of the actuating-arm 1 which is pivoted to the upper portion of the main frame A, and its lower end is pivoted to the horizontal connecting-bar K the opposite end of which is pivoted to the lower end of the lever-arm M which arm is pivoted near its lower end to the same'portion of the main frame A, and the upper end of the said leverarm is pivoted to the rear end of the curved actuating rod N the forward end of which is pivoted or loosely connected to the small end of the horizontal sliding wedge P, which is supported above the main frame A by the upwardly-projecting end of the before-described setting-punch U, upon which it slides when the presser-foot Y is moved. The said wedge P is held in position thereon and guided in its movements by means of a pro jection 6 formed on the punch U, and a guidepieee the lower end of which is firmly secured to the opposite side of the punch, and its upper end provided with an incline projection or lip f which fits Within a groove 4?, formed in the side of the wedge, and parallel with the lower side or bearing-face of the wedge, as shown in Figs. 5 and 6. It will be seen and understood that the movement of this wedge P corresponds with the move- .ment of the said presser-foot Y, so that when the thickness of materialto'be secured together by means of the rivets V varies the presser-foot when brought to bear thereon must move in a like ratio or manner corresponding thereto.

Now in order that the rivet V,havingbeen inserted through the material, as hereinafter described, and the lower projecting point end is about to be spread or turned outward and upset against the under side of the material, it is essential that the lower end of the said setting-punch U should have a firm bearing upon the head of the rivet in all cases, and in order to provide for the varying thicknesses of material being united this wedge P is brought to bear accordingly by introducing it between the lower end of the setserew h, which projects from the forward end of the cam-lever N and the upper end of the said setting-punch U more or less, as required to insure the same pressure to be brought to bear in all cases, as shown in Figs. 8 and 9, and hereinafter described.

The rivets Vto' be set by this machine are provided with a conical hole in the point end and an annular groove in the body thereof, as shown. These rivets are placed in the semicircular hopper R which is supported above the setting devices above described,

and is secured in position on the top of the main frame Aby means of the vertical bracket or support S the upper end of which is secured to the outside of the hopper, as shown in Fig. 15, and the lower end is provided with a right-angled projection 01 which is bolted firmly to the main frame A at the pointr? (Shown in Figs. 1 and 3.) The upper end portion of the said vertical feed-tube L passes upward through the bottom portion of the said hopper R and its open upper end is connected with an opening formed in the bottom side of the lower end of the inclined raceway T the upper end of which terminates in close proximity to the interior rim U of the rotary elevator-wheel W and is secured in position by the curved bracket X as shownin Figs. 14 and 15.

fitted in bearings provided on the top of the hopper R as shown, and the interior of the rim U is provided with a series of cavities e which are of such size and depth as to re ceive therein one of the said rivets V, as shown in Figs. 17 and 18, which show the rivets on end, the cavities being of such size and formation as to permit a rivet V to fall therein either end up, and in order to elevate the rivets and deliver the same into the top end of the said vertical feed-tube L with their point ends downward, as shown and described, I provide the rotary elevator-wheel W with a flat curved holding finger-plate Z the inward edge of which is fitted within the annular groove if, provided in the outside or inward side face of the said rim U as shown. Now it will be seen and understood that the rivets are liable to fall into the said cavities one end up or the other, or the head end upward, or the point end upward, in equal proportions. So, in order that only those that fall into the cavities with their point ends upward may be elevated and delivered into the said raceway T the said curved finger-plate Z projects within the said groove ta which intersects the said cavit-ies'just sufficiently to pass beneath or in contact with the under side of This rotary elevator-wheel Vi is provided with a horizontal axle or journal Y the head of the rivet, as shown in Fig. 18, the rivet is retained thereby within the cavity until elevated some distance above the horizontal plane or axis of the wheel, sothat when the head of the rivet is carried past the upper end of the curved finger-plate Z it will fall out into the race-way point end downward, or in proper position to enter thetube to be inserted through the two pieces of material to be secured together by means of such rivets, as shown and above described. The rivets which fall into the cavities with their head ends upward, as shown at top of Fig. 17, will not remain therein until carried upward to the point opposite the upper end of the raceway, but will fall out and drop back into the hopper, as the fingerplate will not hold them in position when carried up by the rotation of the said elevatorwheel. This elevator-wheel is provided with a peripheral groove m to receive a driving-belt connecting with a rotary pulley 011 the main or counter shaft, (not shown,) or as desired.

The operation of the machine is as follows: Power being communicated to the main driving-shaft, so as to rotate the several cams secured thereon when the treadle is operated by the foot of the attendant, the pieces of material which are to be secured together having been placed in position on the table, the presser-foot is brought to bear upon the top surface thereof. At the same time the anvil-punch P is forced upward into contact with the under surface of the material, and then the cutting-p11 nch T is forced down ward, cutting a hole through the pieces of material, as shown in'Fig. 7. hen the said punch T is released, a suitable coiled spring returns the punch to its normal position, as shown in Fig. 11. Then the horizontal sliding rivetcarrier is forced forward, carrying a rivet V directly over the hole in the material. Then the upper sliding cross-head H is moved so as to bring the setting-punch U directly over the head of the rivet. It is then forced downward upon the head of the rivet and pushes it through the pieces of material, as shown in Fig. 8. Then the lower sliding cross-head I is moved so as to bring the conical end of the setting-punch R directly beneath the hollow point end of the said rivet, when the said punch is forced upward and partially opens or spreads the end of the rivet, as shown in Fig. 13, (removed from the material.) Then the said punch is carried downward to its normal position. Then the said cross-headI is moved so as to bring the setting or finishing punch S directly beneath the lower end Then this punch is forced upof the rivet.

wardly in contact with the rivet, and the end thereof is further opened or spread outward and turned over upon the surrounding surface of the under side of the material, so as to complete the fastening, as shown in Fig. 9.

It will be seen and understood that the several actuating levers and arms, and also the several punches, are provided with suitable coiled springs to operate in conjunction with the several moving parts, so as to retain the same in proper positions. The action and operation of such springs, being old and well understood, need not .be further described, as those illustrated in the drawings will indicate like action and operation of such duplicates thereof as are omitted.

It will be observed in Fig. 1 that a portion of the forward end of the cam-lever N is broken away, so as to show those parts directly beneath; also, in Fig. 2 it will be-seen that the forward end portion of the curved actuating-rod N is broken away and likewise omitted. As each part is clearly and fully shown in the other figures, their action and relative positions will be readily understood.

Having thus described my invention, what I claim is 1. In a rivet-setting machine, the combination of the actuating-cams E and F, pivoted lever-bars D and G, sliding cross-heads II and I, setting-punches P R S, perforating-punch T, and setting-punch U, cam-levers M and N, eccentric actuating-cams J and K, table L, and presser-foot Y, arranged to operate as described.

2. In a rivet-setting machine, the combination, with the presscr-foot Y, of the sliding carrier A, bar B arm 0 rock-shaft D arm E connecting-bar F actuating 1ever-barG and eccentric O, as described.

8. In a rivet-setting machine, the combination, with the resser-foot Y, of the treadlered O, pivoted spring-bar X, vertical sliding bar Z, plate a having set-screw c actuatingarm 1 bar K lever-arm M curved actuatin g-rod N and sliding wedge P, as described.

4. In a rivet-setting machine, the combination, with the presser-foot Y, of the feed-tube L having a sliding joint J hopper R feedwheel V and raceway/F as described.

5. In a rivet-setting machine, the combination, with the hopper R of the feed-wheel having a rim U provided with cavities v and annular groove M, the curved fingerplate Z and raceway T as described.

HENRY II. CUMMINGS.

Witnesses:

SYLVENUS WALKER, WILLIAM H. PARRY. 

